CVE-2026-37534

CRITICAL

Open-SAE-J1939 Integer Underflow in SAE_J1939_Read_Transport_Protocol_Data_Transfer

Title source: llm

Description

Integer underflow vulnerability in Open-SAE-J1939 thru commit b6caf884df46435e539b1ecbf92b6c29b345bdfe (2025-11-30) in SAE_J1939_Read_Transport_Protocol_Data_Transfer,allows attackers to write to arbitrary memory via crafted sequence number from the CAN frame.

References (2)

Core 2

Core References

https://github.com/DanielMartensson/Open-SAE-J1939

https://gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381

Scores

CVSS v3 9.8

EPSS 0.0042

EPSS Percentile 33.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-191

Status published

Published May 01, 2026

Tracked Since May 01, 2026